Know all about Hyaloclastite and Dolomite properties here. All properties of rocks are important as they define the type of rock and its application. Hyaloclastite belongs to Igneous Rocks while Dolomite belongs to Sedimentary Rocks.Texture of Hyaloclastite is Pyroclastic whereas that of Dolomite is Earthy. Hyaloclastite appears Dull and Dolomite appears Glassy or Pearly. The luster of Hyaloclastite is dull and grainy while that of Dolomite is vitreous and pearly. Hyaloclastite is available in brown, grey, yellow colors whereas Dolomite is available in black, brown, colourless, green, grey, pink, white colors. The commercial uses of Hyaloclastite are cemetery markers, creating artwork and that of Dolomite are an oil and gas reservoir, as a feed additive for livestock, gemstone, metallurgical flux, production of lime, soil conditioner, source of magnesia (mgo).